Line data    Source code

       1             : import 'dart:io';
       2             : import 'package:cwtch/models/appstate.dart';
       3             : import 'package:file_picker/file_picker.dart';
       4             : import 'package:flutter/widgets.dart';
       5             : import 'package:provider/provider.dart';
       6             : 
       7           0 : void showFilePicker(BuildContext ctx, int maxBytes, Function(File) onSuccess, Function onError, Function onCancel) async {
       8             :   // only allow one file picker at a time
       9             :   // note: ideally we would destroy file picker when leaving a conversation
      10             :   // but we don't currently have that option.
      11             :   // we need to store AppState in a variable because ctx might be destroyed
      12             :   // while awaiting for pickFiles.
      13           0 :   var appstate = Provider.of<AppState>(ctx, listen: false);
      14           0 :   appstate.disableFilePicker = true;
      15             :   // currently lockParentWindow only works on Windows...
      16           0 :   FilePickerResult? result = await FilePicker.platform.pickFiles(lockParentWindow: true);
      17           0 :   appstate.disableFilePicker = false;
      18           0 :   if (result != null && result.files.first.path != null) {
      19           0 :     File file = File(result.files.first.path!);
      20             :     // We have a maximum number of bytes we can represent in terms of
      21             :     // a manifest (see : https://git.openprivacy.ca/cwtch.im/cwtch/src/branch/master/protocol/files/manifest.go#L25)
      22           0 :     if (file.lengthSync() <= maxBytes) {
      23           0 :       onSuccess(file);
      24             :     } else {
      25           0 :       onError();
      26             :     }
      27             :   } else {
      28           0 :     onCancel();
      29             :   }
      30             : }
      31             : 
      32           0 : Future<String?> showCreateFilePicker(BuildContext ctx) async {
      33             :   // only allow one file picker at a time
      34             :   // note: ideally we would destroy file picker when leaving a conversation
      35             :   // but we don't currently have that option.
      36             :   // we need to store AppState in a variable because ctx might be destroyed
      37             :   // while awaiting for pickFiles.
      38           0 :   var appstate = Provider.of<AppState>(ctx, listen: false);
      39           0 :   appstate.disableFilePicker = true;
      40             :   // currently lockParentWindow only works on Windows...
      41           0 :   String? result = await FilePicker.platform.saveFile(lockParentWindow: true);
      42           0 :   appstate.disableFilePicker = false;
      43             :   return result;
      44             : }
      45             : 
      46           0 : Future<String?> showSelectDirectoryPicker(BuildContext ctx) async {
      47             :   // only allow one file picker at a time
      48             :   // note: ideally we would destroy file picker when leaving a conversation
      49             :   // but we don't currently have that option.
      50             :   // we need to store AppState in a variable because ctx might be destroyed
      51             :   // while awaiting for pickFiles.
      52           0 :   var appstate = Provider.of<AppState>(ctx, listen: false);
      53           0 :   appstate.disableFilePicker = true;
      54             :   // currently lockParentWindow only works on Windows...
      55           0 :   String? result = await FilePicker.platform.getDirectoryPath(lockParentWindow: true);
      56           0 :   appstate.disableFilePicker = false;
      57             :   return result;
      58             : }